Year: 2016

Getting and Installing Linux – Part 3

6:01 am

UEFI and booting Linux on Win 8.1 & 10 machines

by James Stephens

Unified Extensible Firmware Interface (UEFI) is intended to be a modern alternative to BIOS. Ideally UEFI-(Secure Boot) blocks malware from being loaded when the computer is booted by using digital keys which software must possess in order to be booted onto the computer. UEFI supplants the traditional BIOS and it’s post screen, appreciably shortening boot times but sometimes adding a few more steps to set up a computer to boot into Linux. If necessary UEFI-(Secure Boot) may be disabled to allow access to the BIOS and the booting of non-UEFI complaint operating systems, such as 32 bit Linux or legacy Windows, and set up the computer to boot into Linux as I described in the previous post. But I recommend using UEFI if at all possible.
» Read more

16 comments

Another Obamacare co-op folds

12:41 am

Finding out what’s in it: Another Obamacare co-op folded today, the second to do so this week and the 15th out of the original 23 to fail.

Oregon’s Department of Consumer and Business Services (DCBS) announced Friday that it is taking over the insurer, known as Oregon’s Health CO-OP, and will liquidate the company. The plan’s 20,600 enrollees will be forced to find new health insurance, with their plans ending on July 31. The state will hold a special sign-up period to allow these enrollees to find new coverage.

Do not be surprised if most if not all of the remaining 8 co-ops also shut down in the next year. Do not be surprised if we also see the failures of several private for-profit insurance companies as well.

Too bad no one predicted these failures, except for every Republican in Congress as well as conservatives and tea party activists across the country.

2 comments

Two anti-fracking/anti-oil industry environmental papers retracted

11:40 pm

Thank goodness these were peer reviewed! Two environmental papers, one claiming increased air pollution near fracking sites and the second claiming that the 2010 Gulf of Mexico oil spill caused air contamination, have now both been retracted because of “crucial mistakes.”

According to the corresponding author of both papers, Kim Anderson at Oregon State University, the journal plans to publish new versions of both papers in the next few days. In the case of the fracking paper, the conclusions have been reversed — the original paper stated pollution levels exceeded limits set by the U.S. Environmental Protection Agency (EPA) for lifetime cancer risk, but the corrected data set the risks below EPA levels.

The fracking paper received some media attention when it was released, as it tapped into long-standing concerns about the environmental dangers of hydraulic fracturing (fracking), which extracts natural gas from the earth. A press release that accompanied the paper quoted Anderson as warning: “Air pollution from fracking operations may pose an under-recognized health hazard to people living near them.”

Both papers, published in Environmental Science and Technology, were retracted on the same day (June 29), both due to mistakes in reported levels of polycyclic aromatic hydrocarbons (PAHs), pollutants released from burning oil, gas, and other organic matter.

They say that the errors were due to an “honest spreadsheet error.”

1 comment

TMT likely to abandon Hawaii

3:55 pm

Officials from the consortium that is building the Thirty Meter Telescope (TMT) have revealed that they are looking very seriously at alternative locations.

Officials behind the proposed Thirty Meter Telescope (TMT) are considering new locations for the $1.4bn facility, and expect to decide whether to opt for a new site early next year. The TMT is due to be built on Hawaii’s Mauna Kea mountain but, following protests from local residents, its building permit was revoked last December by the state’s Supreme Court. New locations that are being considered include Baja California in Mexico, the Canary Islands and Chile, as well as locations in India and China.

They claim that Hawaii is still their first choice, but if they don’t see any progress by summer in the permitting process, I expect them to tell Hawaii to go to hell (though not in those words) and pick somewhere else.

5 comments

New Navy communications satellite in trouble

3:46 pm

A Navy communications satellite launched two weeks ago by a ULA Atlas 5 rocket is having trouble reaching its planned geosynchronous orbit.

From that highly elliptical preliminary orbit, the Lockheed Martin-built satellite would perform 7 firings of its Liquid Apogee Engine to raise the low point to circularize the orbit and reduce its orbital tilt closer to the equator.

But after an unspecified number of burns were completed, the trip to geosynchronous orbit was stopped, the Navy said in response to questions submitted by Spaceflight Now. “The satellite experienced an anomaly that required the transfer maneuver to be temporarily halted,” the Navy says. “The Navy’s Program Executive Office for Space Systems has reconfigured the satellite from orbital transfer into a stabilized, safe intermediate orbit to allow the MUOS team to evaluate the situation and determine options for proceeding.”

0 comments

A blunt honest appraisal of America today

12:32 pm

The coming dark age: This op-ed encapsulates perfectly my despairing sense of today’s American culture, and what it will bring to the future.

After noting the effort by Obama and the Democrats these past eight years to divide Americans by race, party, gender, religion, and creed, he then adds:

Into this, Republicans are responding not with a candidate who will rise above the fray and try to unite us all back into common culture, but a man with no temperament to do anything other than divide. His loudest supporters embrace a “convert or die” mentality. We are either with him or against him.

Republicans have embraced a man who takes tribalism to new levels and, in the process, have put on blinders and willfully ignored how much he excites white nationalists and the race baiters of the right. For every New Black Panther in love with Barack Obama there are two white nationalists willing to march through hell for Donald Trump.

In his conclusion he adds

I’m afraid 2016 is the beginning of a chaotic time and not a one off occasion. We may look back on 2016 as the calm before the storm. What is most galling to me is that my party, the party I once served as an elected official, has turned to a man who has no intention of uniting the nation, who brings out the worst in absolutely everybody, and with so much on the line has so little a chance of even winning. But to point this out is to be accused of being a traitor and helping a woman I find equally offensive.

All of this is to say we get the government and national character that reflects us and right now it is all a damning indictment of our American character. How many more will die? How many more Americans will turn against each other? How many will seek blame instead of reconciliation?

Meanwhile, I am reminded of how, during the primary campaign, Ted Cruz was always willing to graciously reach out to protesters and debate the issues with them politely, face-to-face. That behavior, in modern America, has now been called “creepy” and the act of a liar.

We get the government we deserve. Be prepared for bad things in the future.

79 comments

The terrorist murders in Dallas

10:41 am

Last night, during a Black Lives Matter protest, five policeman were killed and nine people (seven cops) were wounded by rooftop sniper fire. One shooter was killed, after police learned that “he wanted to kill white people, especially white officers.”

This was clearly a terrorist attack, aimed very specifically at the police. It was clearly inspired and instigated by the hate being expressed during this election year by leftists and by the very bigoted Black Lives Matter movement, which really only cares about black people, and gets offended if you try to tell them that all lives matter.

Five years ago shortly after the Tucson shootings that badly injured Congresswoman Gabby Giffords, I noted in disgust the inflammatory language of the left. Even as they were demanding more civility from conservatives, they were also demanding the murder of conservatives. At that time I called on them to tone down their rhetoric.

This behavior must stop. Violent and angry rhetoric can and will cause violence. And it probably has, considering the fact that a large number of the random violent acts in recent years have actually been committed by deranged individuals with liberal, not conservative, leanings. This is not to say that I blame the left for this violence, but that the left has as much of a responsibility as the right to think carefully about what it says, before it says it. Otherwise, they might find that they have made their less rational followers more angry than they ever imagined, or can control.

Or as Michael York says to his NAZI friend at the end of this scene from the 1972 movie, Cabaret. “You still think you can control them?”

Sadly, in the five years since I have seen no effort at all by the left to tone down its rhetoric. If anything, they have notched it up, repeatedly expressing hate against conservatives and calling for increased acts of violence and oppression against them. Thus, we should not be surprised by last night’s attacks in Dallas. Nor should be be surprised if it gets worse in the coming months, as we get closer to the election. While the right wants to win in the voting booth, too many people on the left now seem to consider the idea of elections inconvenient and a problem, and also consider violence as a reasonable response should they lose at the polls.

15 comments

Permanently shadowed regions on Ceres

9:53 am

Using data from Dawn scientists have calculated that Ceres could have significant regions on the floors of crater, which are permanently shadowed and which could accumulate water ice.

In this study, Schorghofer and colleagues studied Ceres’ northern hemisphere, which was better illuminated than the south. Images from Dawn’s cameras were combined to yield the dwarf planet’s shape, showing craters, plains and other features in three dimensions. Using this input, a sophisticated computer model developed at NASA’s Goddard Space Flight Center, Greenbelt, Maryland, was used to determine which areas receive direct sunlight, how much solar radiation reaches the surface, and how the conditions change over the course of a year on Ceres.

The researchers found dozens of sizeable permanently shadowed regions across the northern hemisphere. The largest one is inside a 10-mile-wide (16-kilometer) crater located less than 40 miles (65 kilometers) from the north pole. Taken together, Ceres’ permanently shadowed regions occupy about 695 square miles (1,800 square kilometers). This is a small fraction of the landscape — much less than 1 percent of the surface area of the northern hemisphere.

Because Ceres is much farther than the Sun that the Moon or Mercury, the scientists believe it very likely that water ice could have accumulated in these cold traps.

0 comments

MRI software bug invalidates 40,000 research papers

9:33 am

The uncertainty of science: A bug just discovered in the computer software used by MRIs to measure brain activity could invalidate 15 years of research and 40,000 science papers.

They tested the three most popular fMRI software packages for fMRI analysis – SPM, FSL, and AFNI – and while they shouldn’t have found much difference across the groups, the software resulted in false-positive rates of up to 70 percent. And that’s a problem, because as Kate Lunau at Motherboard points out, not only did the team expect to see an average false positive rate of just 5 percent, it also suggests that some results were so inaccurate, they could be indicating brain activity where there was none.

“These results question the validity of some 40,000 fMRI studies and may have a large impact on the interpretation of neuroimaging results,” the team writes in PNAS. The bad news here is that one of the bugs the team identified has been in the system for the past 15 years, which explains why so many papers could now be affected. [emphasis mine]

The research the article described is focused entirely on the problems the software causes for past research. It makes no mention of the problems this software bug might cause for actual medical diagnosis Was the treatment of any patients effected by this bug? It does not say.

4 comments

A description of SLS’s first launch

9:18 am

This article provides a detailed look at the planned 2018 first launch of SLS, describing step-by-step the launch process that will send an unmanned Orion capsule toward the Moon.

As my readers know, I am not a fan of SLS. I consider it an incredible waste of money that will never accomplish anything. Nonetheless, that first launch will be a cool thing to watch, as the rocket will generate comparable energy as the Saturn 5.

6 comments

Juno turns on

9:09 am

The Juno engineering team has begun turning the spacecraft’s instruments back on following its Jupiter orbital insertion.

Everything looks fine. The next important engine burn on October 19 will shrink the orbit from 53 days to 14 days. In the meantime the present orbit will dip down close to Jupiter on August 27. Expect some news on September 1.

0 comments
1 … 83 84 85 86 87 … 171